Abstract
Azinphosmethyl applied as an ultra-low-volume spray at 0.2 and 0.25 lb per acre was as effective as a water-emulsion spray of methyl parathion (0.5 lb per acre) in a reproduction-diapause control experiment conducted in Carroll County, Mississippi, against the boll weevil, Anthonomus grandis Boheman. A lower rate of azinphosmethyl, 0.125 lb per acre, was less effective. Populations. of boll weevils sampled in woods trash adjoining treated and untreated fields were reduced 94% the fall of 1965 and 98% the spring of 1966.
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